1 Department of Bioengineering, University of Illinois, Urbana, IL, USA.
2 Carl R. Woese Institute for Genomic Biology, University of Illinois, Urbana, IL, USA. bharley@illinois.edu leckband@illinois.edu.
3 Department of Physics and Astronomy, Iowa State University, Ames, IA, USA.
4 Department of Physics, Johns Hopkins University, Baltimore, MD, USA.
5 Carl R. Woese Institute for Genomic Biology, University of Illinois, Urbana, IL, USA. bharley@illinois.edu leckband@illinois.edu and Department of Chemical and Biomolecular Engineering, University of Illinois, Urbana, IL, USA.
6 Department of Bioengineering, University of Illinois, Urbana, IL, USA and Carl R. Woese Institute for Genomic Biology, University of Illinois, Urbana, IL, USA. bharley@illinois.edu leckband@illinois.edu and Department of Chemical and Biomolecular Engineering, University of Illinois, Urbana, IL, USA.